Ejector pin assembly

Abstract

The utility model discloses an ejector pin assembly and belongs to the technical field of ejector pins. Comprising a first body, a through hole is formed in the side face of the first body, a pair of clamping holes are formed in the wall face of the through hole, the shifting rod comprises a second body, a sliding hole is formed in one end of the second body, a sliding rod is elastically connected into the sliding hole, a connecting sleeve is further installed at one end of the second body, and the sliding rod is located in the connecting sleeve. A first sliding groove and a second sliding groove are formed in the side face of the sliding rod, the depth of the first sliding groove is larger than that of the second sliding groove, an open hole is formed in the outer side of the connecting sleeve, a clamping ball is arranged in the open hole, the clamping ball rolls in the first sliding groove and the second sliding groove, and the clamping ball and the clamping hole are clamped. According to the ejector pin assembly, the purpose of conveniently disassembling the shifting rod can be achieved, and the purpose of conveniently disassembling the ejector pin by a user is indirectly achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a ejector pin technology field, specifically is a ejector pin assembly. BACKGROUND

[0002] The ejector pin assembly is commonly used in the field of machining, and is mostly used for limiting machining parts, and the steps of mounting the ejector pin to a mechanical part are aligning a through hole on the ejector pin with a fixing hole on the mechanical part, then inserting a pull rod into the aligned through hole and fixing hole, so as to fix the ejector pin on the mechanical part.

[0003] However, the connection mode of the pull rod and the through hole on the ejector pin is usually threaded connection or direct clamping connection, the threaded connection is not conducive to the disassembly and assembly of the pull rod, and the direct clamping connection mode requires that the diameter of the pull rod is the same as that of the through hole, and the surfaces of the pull rod and the through hole are relatively rough, so that the pull rod is directly contacted with the through hole to utilize the static friction force to fix the pull rod and the ejector pin together, but this mode is also not conducive to the disassembly and assembly of the pull rod due to the large static friction force. SUMMARY

[0004] The utility model discloses a ejector pin assembly to solve the problems in the above background technology.

[0005] A kind of ejector pin assembly, including ejector pin, pull rod, the ejector pin includes first body, the side surface of the first body is equipped with through hole, a pair of clamping holes are equipped on the wall surface of the through hole, the pull rod includes second body, one end of the second body is equipped with sliding hole, the sliding hole is elastically connected with slide rod, one end of the second body is also equipped with connecting sleeve, the slide rod is located in the inside of the connecting sleeve, the side surface of the slide rod is equipped with first sliding groove and second sliding groove, and the depth of the first sliding groove is greater than the depth of the second sliding groove, the outside of the connecting sleeve is equipped with opening, the opening is equipped with clamping ball, and the clamping ball rolls in the first sliding groove and the second sliding groove, and the clamping ball and the clamping hole are clamped together.

[0006] Specifically, in the natural state, the clamping ball is on the second sliding groove, at this time, the clamping ball protrudes from the opening, so it can be clamped with the clamping hole, so the pull rod and the ejector pin can be fixed together, when the slide rod slides, the first sliding groove moves to the lower side of the clamping ball, at this time, the clamping ball falls into the opening, so it is separated from the clamping hole, so the pull rod and the ejector pin can be separated.

[0007] The beneficial effect of the above further scheme is that the height of the clamping ball is changed by sliding the slide rod, so as to determine whether the clamping ball is clamped with the clamping hole, thereby achieving the purpose of facilitating the user to disassemble the pull rod, and indirectly achieving the purpose of facilitating the user to disassemble and assemble the ejector pin.

[0008] Further, a pair of limiting grooves are arranged on the side of the second body, and a pair of limiting blocks are arranged on the outer side of the sliding rod, and the limiting blocks slide in the limiting grooves.

[0009] Further, a spring is arranged between the sliding rod and the sliding hole.

[0010] Further, the surface of the limiting block is provided with anti-skid texture.

[0011] Specifically, the limiting block is pushed to slide in the limiting groove, thereby driving the sliding rod to move, and the limiting block is released, and the sliding rod is reset under the action of the spring, so that the second sliding groove returns to the original position to lift the clamping ball, and the anti-skid texture is used to easily push the limiting block.

[0012] Further, the connecting part of the first sliding groove and the second sliding groove is provided with a slope.

[0013] The beneficial effect of the above further scheme is that the slope can use the clamping ball to roll between the first sliding groove and the second sliding groove.

[0014] Further, the radius of the clamping ball is smaller than the radius of the clamping hole, and the outer diameter of the connecting sleeve is equal to the diameter of the through hole.

[0015] The beneficial effect of the above further scheme is that the size of the clamping ball and the clamping hole is limited to ensure that the clamping ball is clamped in the clamping hole, and the size of the connecting sleeve and the through hole is limited to prevent the connecting sleeve from shaking in the through hole, and the surfaces of the connecting sleeve and the through hole are smooth to reduce the friction therebetween.

[0016] Compared with the prior art, the beneficial effect of the utility model is that: the thimble assembly changes the height of the clamping ball by sliding the sliding rod, so as to determine whether the clamping ball is clamped with the clamping hole, thereby achieving the purpose of facilitating the user to disassemble the push rod, and indirectly achieving the purpose of facilitating the user to disassemble and assemble the thimble. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model discloses a thimble assembly's three -dimensional structure schematic diagram is disclosed for the embodiment of the utility model;

[0018] Figure 2 The utility model discloses a thimble assembly's cross section structure schematic diagram is disclosed for the embodiment of the utility model;

[0019] Figure 3 The utility model discloses a thimble assembly's explosion structure schematic diagram is disclosed for the embodiment of the utility model.

[0020] In the figure: 100, ejector pin; 1001, first body; 1002, through hole; 1003, clamping hole; 200, lever; 2001, second body; 2002, limiting groove; 2003, spring; 2004, sliding rod; 2005, limiting block; 2006, first sliding groove; 2007, inclined surface; 2008, second sliding groove; 2009, connecting sleeve; 2010, opening; 2011, clamping ball. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] Please refer to Figure 1 - Figure 3 The present application provides a technical solution: an ejector pin assembly, comprising an ejector pin 100 and a lever 200. The ejector pin 100 comprises a first body 1001. The side surface of the first body 1001 is provided with a through hole 1002. A pair of clamping holes 1003 are arranged on the wall surface of the through hole 1002. The lever 200 comprises a second body 2001. One end of the second body 2001 is provided with a sliding hole. A sliding rod 2004 is elastically connected in the sliding hole. A connecting sleeve 2009 is also mounted on one end of the second body 2001. The sliding rod 2004 is located inside the connecting sleeve 2009. The side surface of the sliding rod 2004 is provided with a first sliding groove 2006 and a second sliding groove 2008. The depth of the first sliding groove 2006 is greater than the depth of the second sliding groove 2008. An opening 2010 is arranged on the outside of the connecting sleeve 2009. A clamping ball 2011 is arranged in the opening 2010. The clamping ball 2011 rolls in the first sliding groove 2006 and the second sliding groove 2008. The clamping ball 2011 is engaged with the clamping hole 1003. In a natural state, the clamping ball 2011 is located on the second sliding groove 2008. At this time, the clamping ball 2011 protrudes out of the opening 2010, so it can be engaged with the clamping hole 1003. Therefore, the lever 200 and the ejector pin 100 can be fixed together. When the sliding rod 2004 slides, the first sliding groove 2006 moves below the clamping ball 2011. At this time, the clamping ball 2011 falls into the opening 2010, so it is separated from the clamping hole 1003. Therefore, the lever 200 and the ejector pin 100 can be separated. The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] Referring to Figure 1 Figure 3 The utility model provides a technical scheme: a ejector pin assembly, a pair of limit grooves 2002 are set up in the side surface of second body 2001, a pair of limit blocks 2005 are installed to the outside of slide rod 2004, limit block 2005 slides in limit groove 2002, spring 2003 is connected between slide rod 2004 and slide hole, the surface of limit block 2005 is equipped with antiskid texture, limit block 2005 is actuated, and it slides in limit groove 2002, thereby driving slide rod 2004 to move, and limit block 2005 is loosened, slide rod 2004 resets under the action of spring 2003, makes second slide groove 2008 return to the original position, and simultaneously uses antiskid texture to make limit block 2005 can be easily actuated.

[0024] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0025] Referring to Figure 1 Figure 3 The utility model provides a technical scheme: a ejector pin assembly, the radius of ball 2011 is less than the radius of clamping hole 1003, the outer diameter of connecting sleeve 2009 is equal to the diameter of through hole 1002, by the size limit of ball 2011 and clamping hole 1003, it can guarantee that ball 2011 is clamped into clamping hole 1003, by the size limit of connecting sleeve 2009 and through hole 1002, it can prevent connecting sleeve 2009 from shaking in through hole 1002, and the surface of connecting sleeve 2009 and through hole 1002 is smooth, to reduce the friction between them.

[0026] Specifically, the working principle of the ejector pin assembly is as follows: when in use, the ejector pin 100 is placed in the mounting position of the mechanical part, the through hole 1002 is aligned with the fixing hole on the mechanical part, the limit block 2005 is pushed forward, the ball 2011 falls into the opening 2010, then the connecting sleeve 2009 is slid into the through hole 1002 until the first body 1001 and the second body 1002 abut, then the limit block 2005 is loosened, and the lever 200 is rotated, so that the ball 2011 is clamped into the clamping hole 1003, and the ejector pin 100 and the mechanical part are fixed together.​​

Claims

1. A needle assembly comprising: The utility model provides a needle (100), dialing rod (200), the needle (100) includes first body (1001), one side of first body (1001) is equipped with through -hole (1002), the wall surface of through -hole (1002) is equipped with a pair of card hole (1003), dialing rod (200) includes second body (2001), one end of second body (2001) is equipped with slide hole, the slide hole is elastically connected with slide rod (2004), one end of second body (2001) is also installed with connecting sleeve (2009), the slide rod (2004) is located in the inside of connecting sleeve (2009), one side of slide rod (2004) is equipped with first slide groove (2006) and second slide groove (2008), and the depth of first slide groove (2006) is greater than the depth of second slide groove (2008), one side of connecting sleeve (2009) is equipped with opening (2010), the opening (2010) is equipped with ball (2011), and ball (2011) rolls in first slide groove (2006), second slide groove (2008), ball (2011) and card hole (1003) are engaged.

2. A thimble assembly according to claim 1, wherein One side of second body (2001) is equipped with a pair of limit slot (2002), one side of slide rod (2004) is installed with a pair of limit block (2005), and limit block (2005) slides in limit slot (2002).

3. A thimble assembly according to claim 2, wherein Spring (2003) is connected between slide rod (2004) and slide hole.

4. A thimble assembly according to claim 2, wherein The surface of limit block (2005) is equipped with antiskid texture.

5. A thimble assembly according to claim 1 wherein, The junction of first slide groove (2006) and second slide groove (2008) is equipped with inclined plane (2007).

6. A thimble assembly according to claim 1 wherein, The radius of ball (2011) is less than the radius of card hole (1003), and the outer diameter of connecting sleeve (2009) is equal to the diameter of through -hole (1002).

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